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Re: Brute SSL Challenge
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On Thu, 24 Aug 1995, Piete Brooks wrote:
> Date: Thu, 24 Aug 1995 08:05:33 +0100
> From: Piete Brooks <[email protected]>
> To: David Neal <[email protected]>
> Cc: [email protected]
> Subject: Re: Brute SSL Challenge
>
> > Hopefully everyone on here is accomplished enough to know
> > optimizing the brutessl code helps immensely. If not, well I used
> >
> > gcc -O6 -funroll-loops -fomit-frame-pointer -finline-functions -c search.c
> > gcc -O6 -funroll-loops -fomit-frame-pointer -finline-functions -o brutessl \
> > brutessl.c search.o
> >
> > To go from 5,000 keys per second to 10,100 keys per second.
>
> If people could send me timings for various compilers / flags I'll collate a
> table of speeds [see brutessl.h 1.02 for an example -- I tried using different
> sizes for the RC4 info and it appears that only ALPHAs really gain by using int]
>
> I recommend that you do not blindly use the above flags -- I just tried it on
> our fastest machines (SGIs) and it *REDUCED* the speed from 35200 to 28400.
this resulted in a fairly significant increase on my machine (486
DX4-100 running Linux 1.2.11)
stats:
w/o optimizations:
17 minutes and 45 seconds per segment, 15800 keys per second .
w/ opts:
16 minutes and 56 seconds per segment, 16500 keys per second.
- -pjf
patrick finerty = [email protected] = [email protected]
U of Utah biochem grad student in the Bass lab - zinc fingers + dsRNA!
** FINGER [email protected] for pgp public key - CRYPTO!
zifi runs LINUX 1.2.11 -=-=-=WEB=-=-=-> http://zifi.genetics.utah.edu
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